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Forum: GPU Computing 2020-10-20, 19:01
Replies: 1
Views: 446
Posted By BenR
The optimization option, -O, is causing the error...

The optimization option, -O, is causing the error (it's no longer legal after CUDA 10). Try using -O3.
Forum: Programming 2017-07-28, 02:36
Replies: 13
Views: 1,790
Posted By BenR
PNG compression is lossless, so it should be the...

PNG compression is lossless, so it should be the exact same quality as the bitmap.
Forum: FactorDB 2017-01-23, 02:50
Replies: 6
Views: 2,024
Posted By BenR
This limit depends on the browser and server...

This limit depends on the browser and server configuration. In any case, large amounts of data should not be included in the URL. Instead they should be in the body of the HTTP request. But I guess...
Forum: Tales From the Crypt(o) 2016-12-24, 02:35
Replies: 0
Views: 1,551
Posted By BenR
Discrete logarithm on 117-bit elliptic curve (new record)

https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;628a3b51.1612

Daniel J. Bernstein et al computed the discrete logarithm of a binary curve of order approximately 2^117.35. The computation...
Forum: Computer Science & Computational Number Theory 2016-03-27, 00:37
Replies: 2
Views: 935
Posted By BenR
It's actually for any prime, not just the NIST...

It's actually for any prime, not just the NIST ones :)

I'll look into Montgomery multiplication. The downside is that even the distinguished points would need to be stored in Montgomery form.
Forum: Computer Science & Computational Number Theory 2016-03-25, 02:05
Replies: 2
Views: 935
Posted By BenR
Fast modular reduction for primes < 512 bits?

Hi,

I'm working on an implementation of Pollard's Rho for elliptic curves over prime fields.

Currently it's using the Barrett Reduction but I'm wondering if there is anything faster for general...
Forum: Hardware 2014-11-23, 17:57
Replies: 12
Views: 1,660
Posted By BenR
Interesting. Would be nice if someone could get...

Interesting. Would be nice if someone could get their hands on a reference board.

According to the website, this TURBOCARD2 has four of these processors:
...
Forum: Programming 2014-11-15, 05:14
Replies: 10
Views: 1,026
Posted By BenR
You can write to constant memory using the...

You can write to constant memory using the cudaMemcpyToSymbol (http://docs.nvidia.com/cuda/cuda-runtime-api/group__CUDART__MEMORY.html#group__CUDART__MEMORY_1g2a229a704ade54887f7784e2e2dbd895)...
Forum: Programming 2014-11-15, 02:41
Replies: 10
Views: 1,026
Posted By BenR
Hi, How large is this array, and how often...

Hi,

How large is this array, and how often is it accessed, and what is the access pattern?

You'll probably want to put this in constant memory or shared memory.

If you put it in constant...
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